अच्छेद्योऽयमदाह्योऽयमक्लेद्योऽशोष्य एव च।नित्यः सर्वगतः स्थाणुरचलोऽयं सनातनः॥
acchedyo ’yam adāhyo ’yam akledyo ’śoṣya eva canityaḥ sarva-gataḥ sthāṇur acalo ’yaṃ sanātanaḥ
Word by word
The verse says
It cannot be cut, cannot be burned, cannot be soaked, cannot be dried. It is constant, everywhere, unmoving, fixed, there from the beginning.
In plain words
The same four denials again, then five positive words.
Krishna repeats himself deliberately. The negatives from verse 23 come back as adjectives, and then he adds what it is rather than what it is not.
Constant. Everywhere. Unmoving. Fixed. Ancient.
Where you've felt this · in study
Somebody explains a thing twice, the second time in slightly different words. They are not padding. They can see the first version went past you, and they are laying a second track beside it.
Going deeper
The repetition is not accidental, and it is not filler.
Verse 23 stated the denials as actions: fire does not burn it. Verse 24 states them as properties: it is unburnable. The difference is between reporting an event and describing a nature.
Then sarva-gata — all-pervading — arrives, and it changes the scale. Up to now Krishna could have been describing something small and private, one soul per body. This word says otherwise, and it is the seed of what Chapters 7 to 11 will grow into.
There is a genuine tension in the list, worth noticing rather than tidying. Sarva-gata, everywhere, sits beside acala and sthāṇu, unmoving and fixed. How is something both everywhere and still?
The answer the tradition gives is that it does not need to move, because there is nowhere it is not. Motion is for things that are somewhere and want to be elsewhere.
Whether that satisfies you is another matter. The Gita is describing something it says is acintya — not thinkable — and the language strains audibly at the job.